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Comparing deliantra/server/lib/cf.pm (file contents):
Revision 1.444 by root, Mon Sep 8 11:27:25 2008 UTC vs.
Revision 1.471 by root, Mon Apr 27 01:38:48 2009 UTC

21 21
22package cf; 22package cf;
23 23
24use 5.10.0; 24use 5.10.0;
25use utf8; 25use utf8;
26use strict "vars", "subs"; 26use strict qw(vars subs);
27 27
28use Symbol; 28use Symbol;
29use List::Util; 29use List::Util;
30use Socket; 30use Socket;
31use EV; 31use EV;
32use Opcode; 32use Opcode;
33use Safe; 33use Safe;
34use Safe::Hole; 34use Safe::Hole;
35use Storable (); 35use Storable ();
36 36
37use Guard ();
37use Coro (); 38use Coro ();
38use Coro::State; 39use Coro::State;
39use Coro::Handle; 40use Coro::Handle;
40use Coro::EV; 41use Coro::EV;
41use Coro::AnyEvent; 42use Coro::AnyEvent;
42use Coro::Timer; 43use Coro::Timer;
43use Coro::Signal; 44use Coro::Signal;
44use Coro::Semaphore; 45use Coro::Semaphore;
46use Coro::SemaphoreSet;
45use Coro::AnyEvent; 47use Coro::AnyEvent;
46use Coro::AIO; 48use Coro::AIO;
47use Coro::BDB 1.6; 49use Coro::BDB 1.6;
48use Coro::Storable; 50use Coro::Storable;
49use Coro::Util (); 51use Coro::Util ();
63 65
64# configure various modules to our taste 66# configure various modules to our taste
65# 67#
66$Storable::canonical = 1; # reduce rsync transfers 68$Storable::canonical = 1; # reduce rsync transfers
67Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator 69Coro::State::cctx_stacksize 256000; # 1-2MB stack, for deep recursions in maze generator
70
71$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
72
73# make sure c-lzf reinitialises itself
74Compress::LZF::set_serializer "Storable", "Storable::net_mstore", "Storable::mretrieve";
68Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later 75Compress::LZF::sfreeze_cr { }; # prime Compress::LZF so it does not use require later
69
70$Coro::main->prio (Coro::PRIO_MAX); # run main coroutine ("the server") with very high priority
71 76
72sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload 77sub WF_AUTOCANCEL () { 1 } # automatically cancel this watcher on reload
73 78
74our %COMMAND = (); 79our %COMMAND = ();
75our %COMMAND_TIME = (); 80our %COMMAND_TIME = ();
78our %EXTCMD = (); 83our %EXTCMD = ();
79our %EXTICMD = (); 84our %EXTICMD = ();
80our %EXT_CORO = (); # coroutines bound to extensions 85our %EXT_CORO = (); # coroutines bound to extensions
81our %EXT_MAP = (); # pluggable maps 86our %EXT_MAP = (); # pluggable maps
82 87
83our $RELOAD; # number of reloads so far 88our $RELOAD; # number of reloads so far, non-zero while in reload
84our @EVENT; 89our @EVENT;
85 90
86our $CONFDIR = confdir; 91our $CONFDIR = confdir;
87our $DATADIR = datadir; 92our $DATADIR = datadir;
88our $LIBDIR = "$DATADIR/ext"; 93our $LIBDIR = "$DATADIR/ext";
89our $PODDIR = "$DATADIR/pod"; 94our $PODDIR = "$DATADIR/pod";
90our $MAPDIR = "$DATADIR/" . mapdir; 95our $MAPDIR = "$DATADIR/" . mapdir;
91our $LOCALDIR = localdir; 96our $LOCALDIR = localdir;
92our $TMPDIR = "$LOCALDIR/" . tmpdir; 97our $TMPDIR = "$LOCALDIR/" . tmpdir;
93our $UNIQUEDIR = "$LOCALDIR/" . uniquedir; 98our $UNIQUEDIR = "$LOCALDIR/" . uniquedir;
94our $PLAYERDIR = "$LOCALDIR/" . playerdir; 99our $PLAYERDIR = "$LOCALDIR/" . playerdir;
95our $RANDOMDIR = "$LOCALDIR/random"; 100our $RANDOMDIR = "$LOCALDIR/random";
96our $BDBDIR = "$LOCALDIR/db"; 101our $BDBDIR = "$LOCALDIR/db";
102our $PIDFILE = "$LOCALDIR/pid";
103our $RUNTIMEFILE = "$LOCALDIR/runtime";
104
97our %RESOURCE; 105our %RESOURCE;
98 106
99our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!) 107our $TICK = MAX_TIME * 1e-6; # this is a CONSTANT(!)
100our $NEXT_RUNTIME_WRITE; # when should the runtime file be written 108our $NEXT_RUNTIME_WRITE; # when should the runtime file be written
101our $NEXT_TICK; 109our $NEXT_TICK;
102our $USE_FSYNC = 1; # use fsync to write maps - default off 110our $USE_FSYNC = 1; # use fsync to write maps - default on
103 111
104our $BDB_DEADLOCK_WATCHER; 112our $BDB_DEADLOCK_WATCHER;
105our $BDB_CHECKPOINT_WATCHER; 113our $BDB_CHECKPOINT_WATCHER;
106our $BDB_TRICKLE_WATCHER; 114our $BDB_TRICKLE_WATCHER;
107our $DB_ENV; 115our $DB_ENV;
108 116
117our @EXTRA_MODULES = qw(pod mapscript);
118
109our %CFG; 119our %CFG;
110 120
111our $UPTIME; $UPTIME ||= time; 121our $UPTIME; $UPTIME ||= time;
112our $RUNTIME; 122our $RUNTIME;
113our $NOW; 123our $NOW;
122our $LOAD; # a number between 0 (idle) and 1 (too many objects) 132our $LOAD; # a number between 0 (idle) and 1 (too many objects)
123our $LOADAVG; # same thing, but with alpha-smoothing 133our $LOADAVG; # same thing, but with alpha-smoothing
124our $JITTER; # average jitter 134our $JITTER; # average jitter
125our $TICK_START; # for load detecting purposes 135our $TICK_START; # for load detecting purposes
126 136
137our @POST_INIT;
138
139our $REATTACH_ON_RELOAD; # ste to true to force object reattach on reload (slow)
140
127binmode STDOUT; 141binmode STDOUT;
128binmode STDERR; 142binmode STDERR;
129 143
130# read virtual server time, if available 144# read virtual server time, if available
131unless ($RUNTIME || !-e "$LOCALDIR/runtime") { 145unless ($RUNTIME || !-e $RUNTIMEFILE) {
132 open my $fh, "<", "$LOCALDIR/runtime" 146 open my $fh, "<", $RUNTIMEFILE
133 or die "unable to read runtime file: $!"; 147 or die "unable to read $RUNTIMEFILE file: $!";
134 $RUNTIME = <$fh> + 0.; 148 $RUNTIME = <$fh> + 0.;
135} 149}
150
151eval "sub TICK() { $TICK } 1" or die;
136 152
137mkdir $_ 153mkdir $_
138 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR; 154 for $LOCALDIR, $TMPDIR, $UNIQUEDIR, $PLAYERDIR, $RANDOMDIR, $BDBDIR;
139 155
140our $EMERGENCY_POSITION; 156our $EMERGENCY_POSITION;
299our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max 315our $json_coder = JSON::XS->new->utf8->max_size (1e6); # accept ~1mb max
300 316
301sub encode_json($) { $json_coder->encode ($_[0]) } 317sub encode_json($) { $json_coder->encode ($_[0]) }
302sub decode_json($) { $json_coder->decode ($_[0]) } 318sub decode_json($) { $json_coder->decode ($_[0]) }
303 319
320=item cf::post_init { BLOCK }
321
322Execute the given codeblock, I<after> all extensions have been (re-)loaded,
323but I<before> the server starts ticking again.
324
325The cdoeblock will have a single boolean argument to indicate whether this
326is a reload or not.
327
328=cut
329
330sub post_init(&) {
331 push @POST_INIT, shift;
332}
333
304=item cf::lock_wait $string 334=item cf::lock_wait $string
305 335
306Wait until the given lock is available. See cf::lock_acquire. 336Wait until the given lock is available. See cf::lock_acquire.
307 337
308=item my $lock = cf::lock_acquire $string 338=item my $lock = cf::lock_acquire $string
309 339
310Wait until the given lock is available and then acquires it and returns 340Wait until the given lock is available and then acquires it and returns
311a Coro::guard object. If the guard object gets destroyed (goes out of scope, 341a L<Guard> object. If the guard object gets destroyed (goes out of scope,
312for example when the coroutine gets canceled), the lock is automatically 342for example when the coroutine gets canceled), the lock is automatically
313returned. 343returned.
314 344
315Locks are *not* recursive, locking from the same coro twice results in a 345Locks are *not* recursive, locking from the same coro twice results in a
316deadlocked coro. 346deadlocked coro.
322 352
323Return true if the lock is currently active, i.e. somebody has locked it. 353Return true if the lock is currently active, i.e. somebody has locked it.
324 354
325=cut 355=cut
326 356
327our %LOCK; 357our $LOCKS = new Coro::SemaphoreSet;
328our %LOCKER;#d#
329 358
330sub lock_wait($) { 359sub lock_wait($) {
331 my ($key) = @_; 360 $LOCKS->wait ($_[0]);
332
333 if ($LOCKER{$key} == $Coro::current) {#d#
334 Carp::cluck "lock_wait($key) for already-acquired lock";#d#
335 return;#d#
336 }#d#
337
338 # wait for lock, if any
339 while ($LOCK{$key}) {
340 push @{ $LOCK{$key} }, $Coro::current;
341 Coro::schedule;
342 }
343} 361}
344 362
345sub lock_acquire($) { 363sub lock_acquire($) {
346 my ($key) = @_; 364 $LOCKS->guard ($_[0])
347
348 # wait, to be sure we are not locked
349 lock_wait $key;
350
351 $LOCK{$key} = [];
352 $LOCKER{$key} = $Coro::current;#d#
353
354 Coro::guard {
355 delete $LOCKER{$key};#d#
356 # wake up all waiters, to be on the safe side
357 $_->ready for @{ delete $LOCK{$key} };
358 }
359} 365}
360 366
361sub lock_active($) { 367sub lock_active($) {
362 my ($key) = @_; 368 $LOCKS->count ($_[0]) < 1
363
364 ! ! $LOCK{$key}
365} 369}
366 370
367sub freeze_mainloop { 371sub freeze_mainloop {
368 tick_inhibit_inc; 372 tick_inhibit_inc;
369 373
370 Coro::guard \&tick_inhibit_dec; 374 &Guard::guard (\&tick_inhibit_dec);
371} 375}
372 376
373=item cf::periodic $interval, $cb 377=item cf::periodic $interval, $cb
374 378
375Like EV::periodic, but randomly selects a starting point so that the actions 379Like EV::periodic, but randomly selects a starting point so that the actions
727 731
728############################################################################# 732#############################################################################
729 733
730=head2 ATTACHABLE OBJECTS 734=head2 ATTACHABLE OBJECTS
731 735
732Many objects in crossfire are so-called attachable objects. That means you can 736Many objects in deliantra are so-called attachable objects. That means you can
733attach callbacks/event handlers (a collection of which is called an "attachment") 737attach callbacks/event handlers (a collection of which is called an "attachment")
734to it. All such attachable objects support the following methods. 738to it. All such attachable objects support the following methods.
735 739
736In the following description, CLASS can be any of C<global>, C<object> 740In the following description, CLASS can be any of C<global>, C<object>
737C<player>, C<client> or C<map> (i.e. the attachable objects in 741C<player>, C<client> or C<map> (i.e. the attachable objects in
787=item cf::CLASS::attachment $name, ... 791=item cf::CLASS::attachment $name, ...
788 792
789Register an attachment by C<$name> through which attachable objects of the 793Register an attachment by C<$name> through which attachable objects of the
790given CLASS can refer to this attachment. 794given CLASS can refer to this attachment.
791 795
792Some classes such as crossfire maps and objects can specify attachments 796Some classes such as deliantra maps and objects can specify attachments
793that are attached at load/instantiate time, thus the need for a name. 797that are attached at load/instantiate time, thus the need for a name.
794 798
795These calls expect any number of the following handler/hook descriptions: 799These calls expect any number of the following handler/hook descriptions:
796 800
797=over 4 801=over 4
1164 } else { 1168 } else {
1165 aio_unlink "$filename.pst"; 1169 aio_unlink "$filename.pst";
1166 } 1170 }
1167 1171
1168 aio_rename "$filename~", $filename; 1172 aio_rename "$filename~", $filename;
1173
1174 $filename =~ s%/[^/]+$%%;
1175 aio_pathsync $filename if $cf::USE_FSYNC;
1169 } else { 1176 } else {
1170 warn "FATAL: $filename~: $!\n"; 1177 warn "unable to save objects: $filename~: $!\n";
1171 } 1178 }
1172 } else { 1179 } else {
1173 aio_unlink $filename; 1180 aio_unlink $filename;
1174 aio_unlink "$filename.pst"; 1181 aio_unlink "$filename.pst";
1175 } 1182 }
1266 my ($name, $cb) = @_; 1273 my ($name, $cb) = @_;
1267 1274
1268 $EXTICMD{$name} = $cb; 1275 $EXTICMD{$name} = $cb;
1269} 1276}
1270 1277
1278use File::Glob ();
1279
1271cf::player->attach ( 1280cf::player->attach (
1272 on_command => sub { 1281 on_command => sub {
1273 my ($pl, $name, $params) = @_; 1282 my ($pl, $name, $params) = @_;
1274 1283
1275 my $cb = $COMMAND{$name} 1284 my $cb = $COMMAND{$name}
1306 } 1315 }
1307 1316
1308 cf::override; 1317 cf::override;
1309 }, 1318 },
1310); 1319);
1320
1321# "readahead" all extensions
1322sub cache_extensions {
1323 my $grp = IO::AIO::aio_group;
1324
1325 add $grp IO::AIO::aio_readdir $LIBDIR, sub {
1326 for (grep /\.ext$/, @{$_[0]}) {
1327 add $grp IO::AIO::aio_load "$LIBDIR/$_", my $data;
1328 }
1329 };
1330
1331 $grp
1332}
1311 1333
1312sub load_extensions { 1334sub load_extensions {
1313 cf::sync_job { 1335 cf::sync_job {
1314 my %todo; 1336 my %todo;
1315 1337
1385 1407
1386=back 1408=back
1387 1409
1388=head2 CORE EXTENSIONS 1410=head2 CORE EXTENSIONS
1389 1411
1390Functions and methods that extend core crossfire objects. 1412Functions and methods that extend core deliantra objects.
1391 1413
1392=cut 1414=cut
1393 1415
1394package cf::player; 1416package cf::player;
1395 1417
1438 1460
1439sub exists($) { 1461sub exists($) {
1440 my ($login) = @_; 1462 my ($login) = @_;
1441 1463
1442 $cf::PLAYER{$login} 1464 $cf::PLAYER{$login}
1443 or cf::sync_job { !aio_stat path $login } 1465 or !aio_stat path $login
1444} 1466}
1445 1467
1446sub find($) { 1468sub find($) {
1447 return $cf::PLAYER{$_[0]} || do { 1469 return $cf::PLAYER{$_[0]} || do {
1448 my $login = $_[0]; 1470 my $login = $_[0];
1619 } 1641 }
1620 1642
1621 \@paths 1643 \@paths
1622} 1644}
1623 1645
1624=item $protocol_xml = $player->expand_cfpod ($crossfire_pod) 1646=item $protocol_xml = $player->expand_cfpod ($cfpod)
1625 1647
1626Expand crossfire pod fragments into protocol xml. 1648Expand deliantra pod fragments into protocol xml.
1627 1649
1628=item $player->ext_reply ($msgid, @msg) 1650=item $player->ext_reply ($msgid, @msg)
1629 1651
1630Sends an ext reply to the player. 1652Sends an ext reply to the player.
1631 1653
1844 1866
1845 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go; 1867 (my $path = $_[0]{path}) =~ s/\//$PATH_SEP/go;
1846 "$UNIQUEDIR/$path" 1868 "$UNIQUEDIR/$path"
1847} 1869}
1848 1870
1849# and all this just because we cannot iterate over
1850# all maps in C++...
1851sub change_all_map_light {
1852 my ($change) = @_;
1853
1854 $_->change_map_light ($change)
1855 for grep $_->outdoor, values %cf::MAP;
1856}
1857
1858sub decay_objects { 1871sub decay_objects {
1859 my ($self) = @_; 1872 my ($self) = @_;
1860 1873
1861 return if $self->{deny_reset}; 1874 return if $self->{deny_reset};
1862 1875
1944sub find { 1957sub find {
1945 my ($path, $origin) = @_; 1958 my ($path, $origin) = @_;
1946 1959
1947 $path = normalise $path, $origin && $origin->path; 1960 $path = normalise $path, $origin && $origin->path;
1948 1961
1949 cf::lock_wait "map_data:$path";#d#remove 1962 my $guard1 = cf::lock_acquire "map_data:$path";#d#remove
1950 cf::lock_wait "map_find:$path"; 1963 my $guard2 = cf::lock_acquire "map_find:$path";
1951 1964
1952 $cf::MAP{$path} || do { 1965 $cf::MAP{$path} || do {
1953 my $guard1 = cf::lock_acquire "map_data:$path"; # just for the fun of it
1954 my $guard2 = cf::lock_acquire "map_find:$path";
1955
1956 my $map = new_from_path cf::map $path 1966 my $map = new_from_path cf::map $path
1957 or return; 1967 or return;
1958 1968
1959 $map->{last_save} = $cf::RUNTIME; 1969 $map->{last_save} = $cf::RUNTIME;
1960 1970
2027 2037
2028 unless ($self->{deny_activate}) { 2038 unless ($self->{deny_activate}) {
2029 $self->decay_objects; 2039 $self->decay_objects;
2030 $self->fix_auto_apply; 2040 $self->fix_auto_apply;
2031 $self->update_buttons; 2041 $self->update_buttons;
2032 cf::cede_to_tick;
2033 $self->set_darkness_map;
2034 cf::cede_to_tick; 2042 cf::cede_to_tick;
2035 $self->activate; 2043 $self->activate;
2036 } 2044 }
2037 2045
2038 $self->{last_save} = $cf::RUNTIME; 2046 $self->{last_save} = $cf::RUNTIME;
2380 2388
2381our $SAY_CHANNEL = { 2389our $SAY_CHANNEL = {
2382 id => "say", 2390 id => "say",
2383 title => "Map", 2391 title => "Map",
2384 reply => "say ", 2392 reply => "say ",
2385 tooltip => "Things said to and replied from npcs near you and other players on the same map only.", 2393 tooltip => "Things said to and replied from NPCs near you and other players on the same map only.",
2386}; 2394};
2387 2395
2388our $CHAT_CHANNEL = { 2396our $CHAT_CHANNEL = {
2389 id => "chat", 2397 id => "chat",
2390 title => "Chat", 2398 title => "Chat",
2445 2453
2446=item $player_object->enter_link 2454=item $player_object->enter_link
2447 2455
2448Freezes the player and moves him/her to a special map (C<{link}>). 2456Freezes the player and moves him/her to a special map (C<{link}>).
2449 2457
2450The player should be reasonably safe there for short amounts of time. You 2458The player should be reasonably safe there for short amounts of time (e.g.
2451I<MUST> call C<leave_link> as soon as possible, though. 2459for loading a map). You I<MUST> call C<leave_link> as soon as possible,
2460though, as the palyer cannot control the character while it is on the link
2461map.
2452 2462
2453Will never block. 2463Will never block.
2454 2464
2455=item $player_object->leave_link ($map, $x, $y) 2465=item $player_object->leave_link ($map, $x, $y)
2456 2466
2514 2524
2515 $map->load; 2525 $map->load;
2516 $map->load_neighbours; 2526 $map->load_neighbours;
2517 2527
2518 return unless $self->contr->active; 2528 return unless $self->contr->active;
2529 $self->flag (cf::FLAG_DEBUG, 0);#d# temp
2519 $self->activate_recursive; 2530 $self->activate_recursive;
2520 2531
2521 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext 2532 local $self->{_prev_pos} = $link_pos; # ugly hack for rent.ext
2522 $self->enter_map ($map, $x, $y); 2533 $self->enter_map ($map, $x, $y);
2523} 2534}
2686 $self->contr->savebed ($map, $x, $y) 2697 $self->contr->savebed ($map, $x, $y)
2687 if $exit->flag (cf::FLAG_DAMNED); 2698 if $exit->flag (cf::FLAG_DAMNED);
2688 2699
2689 1 2700 1
2690 }) { 2701 }) {
2691 $self->message ("Something went wrong deep within the crossfire server. " 2702 $self->message ("Something went wrong deep within the deliantra server. "
2692 . "I'll try to bring you back to the map you were before. " 2703 . "I'll try to bring you back to the map you were before. "
2693 . "Please report this to the dungeon master!", 2704 . "Please report this to the dungeon master!",
2694 cf::NDI_UNIQUE | cf::NDI_RED); 2705 cf::NDI_UNIQUE | cf::NDI_RED);
2695 2706
2696 warn "ERROR in enter_exit: $@"; 2707 warn "ERROR in enter_exit: $@";
2762 id => "infobox", 2773 id => "infobox",
2763 title => "Body Parts", 2774 title => "Body Parts",
2764 reply => undef, 2775 reply => undef,
2765 tooltip => "Shows which body parts you posess and are available", 2776 tooltip => "Shows which body parts you posess and are available",
2766 }, 2777 },
2778 "c/statistics" => {
2779 id => "infobox",
2780 title => "Statistics",
2781 reply => undef,
2782 tooltip => "Shows your primary statistics",
2783 },
2784 "c/skills" => {
2785 id => "infobox",
2786 title => "Skills",
2787 reply => undef,
2788 tooltip => "Shows your experience per skill and item power",
2789 },
2790 "c/shopitems" => {
2791 id => "infobox",
2792 title => "Shop Items",
2793 reply => undef,
2794 tooltip => "Shows the items currently for sale in this shop",
2795 },
2796 "c/resistances" => {
2797 id => "infobox",
2798 title => "Resistances",
2799 reply => undef,
2800 tooltip => "Shows your resistances",
2801 },
2802 "c/pets" => {
2803 id => "infobox",
2804 title => "Pets",
2805 reply => undef,
2806 tooltip => "Shows information abotu your pets/a specific pet",
2807 },
2808 "c/perceiveself" => {
2809 id => "infobox",
2810 title => "Perceive Self",
2811 reply => undef,
2812 tooltip => "You gained detailed knowledge about yourself",
2813 },
2767 "c/uptime" => { 2814 "c/uptime" => {
2768 id => "infobox", 2815 id => "infobox",
2769 title => "Uptime", 2816 title => "Uptime",
2770 reply => undef, 2817 reply => undef,
2771 tooltip => "How long the server has been running since last restart", 2818 tooltip => "How long the server has been running since last restart",
2780 id => "party", 2827 id => "party",
2781 title => "Party", 2828 title => "Party",
2782 reply => "gsay ", 2829 reply => "gsay ",
2783 tooltip => "Messages and chat related to your party", 2830 tooltip => "Messages and chat related to your party",
2784 }, 2831 },
2832 "c/death" => {
2833 id => "death",
2834 title => "Death",
2835 reply => undef,
2836 tooltip => "Reason for and more info about your most recent death",
2837 },
2838 "c/say" => $SAY_CHANNEL,
2839 "c/chat" => $CHAT_CHANNEL,
2785); 2840);
2786 2841
2787sub cf::client::send_msg { 2842sub cf::client::send_msg {
2788 my ($self, $channel, $msg, $color, @extra) = @_; 2843 my ($self, $channel, $msg, $color, @extra) = @_;
2789 2844
2790 $msg = $self->pl->expand_cfpod ($msg); 2845 $msg = $self->pl->expand_cfpod ($msg)
2846 unless $color & cf::NDI_VERBATIM;
2791 2847
2792 $color &= cf::NDI_CLIENT_MASK; # just in case... 2848 $color &= cf::NDI_CLIENT_MASK; # just in case...
2793 2849
2794 # check predefined channels, for the benefit of C 2850 # check predefined channels, for the benefit of C
2795 if ($CHANNEL{$channel}) { 2851 if ($CHANNEL{$channel}) {
2796 $channel = $CHANNEL{$channel}; 2852 $channel = $CHANNEL{$channel};
2797 2853
2798 $self->ext_msg (channel_info => $channel) 2854 $self->ext_msg (channel_info => $channel);
2799 if $self->can_msg;
2800
2801 $channel = $channel->{id}; 2855 $channel = $channel->{id};
2802 2856
2803 } elsif (ref $channel) { 2857 } elsif (ref $channel) {
2804 # send meta info to client, if not yet sent 2858 # send meta info to client, if not yet sent
2805 unless (exists $self->{channel}{$channel->{id}}) { 2859 unless (exists $self->{channel}{$channel->{id}}) {
2806 $self->{channel}{$channel->{id}} = $channel; 2860 $self->{channel}{$channel->{id}} = $channel;
2807 $self->ext_msg (channel_info => $channel) 2861 $self->ext_msg (channel_info => $channel);
2808 if $self->can_msg;
2809 } 2862 }
2810 2863
2811 $channel = $channel->{id}; 2864 $channel = $channel->{id};
2812 } 2865 }
2813 2866
2814 return unless @extra || length $msg; 2867 return unless @extra || length $msg;
2815 2868
2816 if ($self->can_msg) {
2817 # default colour, mask it out 2869 # default colour, mask it out
2818 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF) 2870 $color &= ~(cf::NDI_COLOR_MASK | cf::NDI_DEF)
2819 if $color & cf::NDI_DEF; 2871 if $color & cf::NDI_DEF;
2820 2872
2821 my $pkt = "msg " 2873 my $pkt = "msg "
2822 . $self->{json_coder}->encode ( 2874 . $self->{json_coder}->encode (
2823 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra] 2875 [$color & cf::NDI_CLIENT_MASK, $channel, $msg, @extra]
2824 ); 2876 );
2825 2877
2826 # try lzf for large packets 2878 # try lzf for large packets
2827 $pkt = "lzf " . Compress::LZF::compress $pkt 2879 $pkt = "lzf " . Compress::LZF::compress $pkt
2828 if 1024 <= length $pkt and $self->{can_lzf}; 2880 if 1024 <= length $pkt and $self->{can_lzf};
2829 2881
2830 # split very large packets 2882 # split very large packets
2831 if (8192 < length $pkt and $self->{can_lzf}) { 2883 if (8192 < length $pkt and $self->{can_lzf}) {
2832 $self->send_packet ("frag $_") for unpack "(a8192)*", $pkt; 2884 $self->send_packet ("frag $_") for unpack "(a8192)*", $pkt;
2833 $pkt = "frag"; 2885 $pkt = "frag";
2834 } 2886 }
2835 2887
2836 $self->send_packet ($pkt); 2888 $self->send_packet ($pkt);
2837 } else {
2838 if ($color >= 0) {
2839 # replace some tags by gcfclient-compatible ones
2840 for ($msg) {
2841 1 while
2842 s/<b>([^<]*)<\/b>/[b]${1}[\/b]/
2843 || s/<i>([^<]*)<\/i>/[i]${1}[\/i]/
2844 || s/<u>([^<]*)<\/u>/[ul]${1}[\/ul]/
2845 || s/<tt>([^<]*)<\/tt>/[fixed]${1}[\/fixed]/
2846 || s/<fg name=\"([^"]+)\">([^<]*)<\/fg>/[color=$1]${2}[\/color]/;
2847 }
2848
2849 $color &= cf::NDI_COLOR_MASK;
2850
2851 utf8::encode $msg;
2852
2853 if (0 && $msg =~ /\[/) {
2854 # COMMAND/INFO
2855 $self->send_packet ("drawextinfo $color 10 8 $msg")
2856 } else {
2857 $msg =~ s/\[\/?(?:b|i|u|fixed|color)[^\]]*\]//g;
2858 $self->send_packet ("drawinfo $color $msg")
2859 }
2860 }
2861 }
2862} 2889}
2863 2890
2864=item $client->ext_msg ($type, @msg) 2891=item $client->ext_msg ($type, @msg)
2865 2892
2866Sends an ext event to the client. 2893Sends an ext event to the client.
3041The following functions and methods are available within a safe environment: 3068The following functions and methods are available within a safe environment:
3042 3069
3043 cf::object 3070 cf::object
3044 contr pay_amount pay_player map x y force_find force_add destroy 3071 contr pay_amount pay_player map x y force_find force_add destroy
3045 insert remove name archname title slaying race decrease split 3072 insert remove name archname title slaying race decrease split
3073 value
3046 3074
3047 cf::object::player 3075 cf::object::player
3048 player 3076 player
3049 3077
3050 cf::player 3078 cf::player
3056=cut 3084=cut
3057 3085
3058for ( 3086for (
3059 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y 3087 ["cf::object" => qw(contr pay_amount pay_player map force_find force_add x y
3060 insert remove inv nrof name archname title slaying race 3088 insert remove inv nrof name archname title slaying race
3061 decrease split destroy change_exp)], 3089 decrease split destroy change_exp value msg lore send_msg)],
3062 ["cf::object::player" => qw(player)], 3090 ["cf::object::player" => qw(player)],
3063 ["cf::player" => qw(peaceful)], 3091 ["cf::player" => qw(peaceful send_msg)],
3064 ["cf::map" => qw(trigger)], 3092 ["cf::map" => qw(trigger)],
3065) { 3093) {
3066 no strict 'refs'; 3094 no strict 'refs';
3067 my ($pkg, @funs) = @$_; 3095 my ($pkg, @funs) = @$_;
3068 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"}) 3096 *{"safe::$pkg\::$_"} = $safe_hole->wrap (\&{"$pkg\::$_"})
3085 my ($code, %vars) = @_; 3113 my ($code, %vars) = @_;
3086 3114
3087 my $qcode = $code; 3115 my $qcode = $code;
3088 $qcode =~ s/"/‟/g; # not allowed in #line filenames 3116 $qcode =~ s/"/‟/g; # not allowed in #line filenames
3089 $qcode =~ s/\n/\\n/g; 3117 $qcode =~ s/\n/\\n/g;
3118
3119 %vars = (_dummy => 0) unless %vars;
3090 3120
3091 local $_; 3121 local $_;
3092 local @safe::cf::_safe_eval_args = values %vars; 3122 local @safe::cf::_safe_eval_args = values %vars;
3093 3123
3094 my $eval = 3124 my $eval =
3324 reload_treasures; 3354 reload_treasures;
3325 3355
3326 warn "finished reloading resource files\n"; 3356 warn "finished reloading resource files\n";
3327} 3357}
3328 3358
3329sub init {
3330 my $guard = freeze_mainloop;
3331
3332 evthread_start IO::AIO::poll_fileno;
3333
3334 reload_resources;
3335}
3336
3337sub reload_config { 3359sub reload_config {
3338 open my $fh, "<:utf8", "$CONFDIR/config" 3360 open my $fh, "<:utf8", "$CONFDIR/config"
3339 or return; 3361 or return;
3340 3362
3341 local $/; 3363 local $/;
3353 }; 3375 };
3354 warn $@ if $@; 3376 warn $@ if $@;
3355 } 3377 }
3356} 3378}
3357 3379
3380sub pidfile() {
3381 sysopen my $fh, $PIDFILE, O_RDWR | O_CREAT
3382 or die "$PIDFILE: $!";
3383 flock $fh, &Fcntl::LOCK_EX
3384 or die "$PIDFILE: flock: $!";
3385 $fh
3386}
3387
3388# make sure only one server instance is running at any one time
3389sub atomic {
3390 my $fh = pidfile;
3391
3392 my $pid = <$fh>;
3393 kill 9, $pid if $pid > 0;
3394
3395 seek $fh, 0, 0;
3396 print $fh $$;
3397}
3398
3358sub main { 3399sub main {
3400 cf::init_globals; # initialise logging
3401
3402 LOG llevInfo, "Welcome to Deliantra, v" . VERSION;
3403 LOG llevInfo, "Copyright (C) 2005-2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team.";
3404 LOG llevInfo, "Copyright (C) 1994 Mark Wedel.";
3405 LOG llevInfo, "Copyright (C) 1992 Frank Tore Johansen.";
3406
3407 cf::init_experience;
3408 cf::init_anim;
3409 cf::init_attackmess;
3410 cf::init_dynamic;
3411
3412 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority
3413
3359 # we must not ever block the main coroutine 3414 # we must not ever block the main coroutine
3360 local $Coro::idle = sub { 3415 local $Coro::idle = sub {
3361 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d# 3416 Carp::cluck "FATAL: Coro::idle was called, major BUG, use cf::sync_job!\n";#d#
3362 (async { 3417 (async {
3363 $Coro::current->{desc} = "IDLE BUG HANDLER"; 3418 $Coro::current->{desc} = "IDLE BUG HANDLER";
3364 EV::loop EV::LOOP_ONESHOT; 3419 EV::loop EV::LOOP_ONESHOT;
3365 })->prio (Coro::PRIO_MAX); 3420 })->prio (Coro::PRIO_MAX);
3366 }; 3421 };
3367 3422
3368 { 3423 evthread_start IO::AIO::poll_fileno;
3369 my $guard = freeze_mainloop; 3424
3425 cf::sync_job {
3426 reload_resources;
3370 reload_config; 3427 reload_config;
3371 db_init; 3428 db_init;
3429
3430 cf::load_settings;
3431 cf::load_materials;
3432 cf::init_uuid;
3433 cf::init_signals;
3434 cf::init_commands;
3435 cf::init_skills;
3436
3437 cf::init_beforeplay;
3438
3439 atomic;
3440
3372 load_extensions; 3441 load_extensions;
3373 3442
3374 $Coro::current->prio (Coro::PRIO_MAX); # give the main loop max. priority 3443 utime time, time, $RUNTIMEFILE;
3444
3445 # no (long-running) fork's whatsoever before this point(!)
3446 POSIX::close delete $ENV{LOCKUTIL_LOCK_FD} if exists $ENV{LOCKUTIL_LOCK_FD};
3447
3448 (pop @POST_INIT)->(0) while @POST_INIT;
3375 } 3449 };
3376 3450
3377 EV::loop; 3451 EV::loop;
3378} 3452}
3379 3453
3380############################################################################# 3454#############################################################################
3389 }; 3463 };
3390 } 3464 }
3391} 3465}
3392 3466
3393sub write_runtime_sync { 3467sub write_runtime_sync {
3394 my $runtime = "$LOCALDIR/runtime";
3395
3396 # first touch the runtime file to show we are still running: 3468 # first touch the runtime file to show we are still running:
3397 # the fsync below can take a very very long time. 3469 # the fsync below can take a very very long time.
3398 3470
3399 IO::AIO::aio_utime $runtime, undef, undef; 3471 IO::AIO::aio_utime $RUNTIMEFILE, undef, undef;
3400 3472
3401 my $guard = cf::lock_acquire "write_runtime"; 3473 my $guard = cf::lock_acquire "write_runtime";
3402 3474
3403 my $fh = aio_open "$runtime~", O_WRONLY | O_CREAT, 0644 3475 my $fh = aio_open "$RUNTIMEFILE~", O_WRONLY | O_CREAT, 0644
3404 or return; 3476 or return;
3405 3477
3406 my $value = $cf::RUNTIME + 90 + 10; 3478 my $value = $cf::RUNTIME + 90 + 10;
3407 # 10 is the runtime save interval, for a monotonic clock 3479 # 10 is the runtime save interval, for a monotonic clock
3408 # 60 allows for the watchdog to kill the server. 3480 # 60 allows for the watchdog to kill the server.
3418 aio_utime $fh, undef, undef; 3490 aio_utime $fh, undef, undef;
3419 3491
3420 close $fh 3492 close $fh
3421 or return; 3493 or return;
3422 3494
3423 aio_rename "$runtime~", $runtime 3495 aio_rename "$RUNTIMEFILE~", $RUNTIMEFILE
3424 and return; 3496 and return;
3425 3497
3426 warn "runtime file written.\n"; 3498 warn "runtime file written.\n";
3427 3499
3428 1 3500 1
3440 my $uuid = "$LOCALDIR/uuid"; 3512 my $uuid = "$LOCALDIR/uuid";
3441 3513
3442 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644 3514 my $fh = aio_open "$uuid~", O_WRONLY | O_CREAT, 0644
3443 or return; 3515 or return;
3444 3516
3445 my $value = uuid_str $uuid_skip + uuid_seq uuid_cur; 3517 my $value = uuid_seq uuid_cur;
3518
3519 unless ($value) {
3520 warn "cowardly refusing to write zero uuid value!\n";
3521 return;
3522 }
3523
3524 my $value = uuid_str $value + $uuid_skip;
3446 $uuid_skip = 0; 3525 $uuid_skip = 0;
3447 3526
3448 (aio_write $fh, 0, (length $value), $value, 0) <= 0 3527 (aio_write $fh, 0, (length $value), $value, 0) <= 0
3449 and return; 3528 and return;
3450 3529
3472} 3551}
3473 3552
3474sub emergency_save() { 3553sub emergency_save() {
3475 my $freeze_guard = cf::freeze_mainloop; 3554 my $freeze_guard = cf::freeze_mainloop;
3476 3555
3477 warn "enter emergency perl save\n"; 3556 warn "emergency_perl_save: enter\n";
3478 3557
3479 cf::sync_job { 3558 cf::sync_job {
3559 # this is a trade-off: we want to be very quick here, so
3560 # save all maps without fsync, and later call a global sync
3561 # (which in turn might be very very slow)
3562 local $USE_FSYNC = 0;
3563
3480 # use a peculiar iteration method to avoid tripping on perl 3564 # use a peculiar iteration method to avoid tripping on perl
3481 # refcount bugs in for. also avoids problems with players 3565 # refcount bugs in for. also avoids problems with players
3482 # and maps saved/destroyed asynchronously. 3566 # and maps saved/destroyed asynchronously.
3483 warn "begin emergency player save\n"; 3567 warn "emergency_perl_save: begin player save\n";
3484 for my $login (keys %cf::PLAYER) { 3568 for my $login (keys %cf::PLAYER) {
3485 my $pl = $cf::PLAYER{$login} or next; 3569 my $pl = $cf::PLAYER{$login} or next;
3486 $pl->valid or next; 3570 $pl->valid or next;
3487 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt 3571 delete $pl->{unclean_save}; # not strictly necessary, but cannot hurt
3488 $pl->save; 3572 $pl->save;
3489 } 3573 }
3490 warn "end emergency player save\n"; 3574 warn "emergency_perl_save: end player save\n";
3491 3575
3492 warn "begin emergency map save\n"; 3576 warn "emergency_perl_save: begin map save\n";
3493 for my $path (keys %cf::MAP) { 3577 for my $path (keys %cf::MAP) {
3494 my $map = $cf::MAP{$path} or next; 3578 my $map = $cf::MAP{$path} or next;
3495 $map->valid or next; 3579 $map->valid or next;
3496 $map->save; 3580 $map->save;
3497 } 3581 }
3498 warn "end emergency map save\n"; 3582 warn "emergency_perl_save: end map save\n";
3499 3583
3500 warn "begin emergency database checkpoint\n"; 3584 warn "emergency_perl_save: begin database checkpoint\n";
3501 BDB::db_env_txn_checkpoint $DB_ENV; 3585 BDB::db_env_txn_checkpoint $DB_ENV;
3502 warn "end emergency database checkpoint\n"; 3586 warn "emergency_perl_save: end database checkpoint\n";
3503 3587
3504 warn "begin write uuid\n"; 3588 warn "emergency_perl_save: begin write uuid\n";
3505 write_uuid_sync 1; 3589 write_uuid_sync 1;
3506 warn "end write uuid\n"; 3590 warn "emergency_perl_save: end write uuid\n";
3507 }; 3591 };
3508 3592
3593 warn "emergency_perl_save: starting sync()\n";
3594 IO::AIO::aio_sync sub {
3595 warn "emergency_perl_save: finished sync()\n";
3596 };
3597
3509 warn "leave emergency perl save\n"; 3598 warn "emergency_perl_save: leave\n";
3510} 3599}
3511 3600
3512sub post_cleanup { 3601sub post_cleanup {
3513 my ($make_core) = @_; 3602 my ($make_core) = @_;
3514 3603
3515 warn Carp::longmess "post_cleanup backtrace" 3604 warn Carp::longmess "post_cleanup backtrace"
3516 if $make_core; 3605 if $make_core;
3606
3607 my $fh = pidfile;
3608 unlink $PIDFILE if <$fh> == $$;
3517} 3609}
3518 3610
3519# a safer delete_package, copied from Symbol 3611# a safer delete_package, copied from Symbol
3520sub clear_package($) { 3612sub clear_package($) {
3521 my $pkg = shift; 3613 my $pkg = shift;
3537 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH}; 3629 my $leaf_symtab = *{$stem_symtab->{$leaf}}{HASH};
3538 for my $name (keys %$leaf_symtab) { 3630 for my $name (keys %$leaf_symtab) {
3539 _gv_clear *{"$pkg$name"}; 3631 _gv_clear *{"$pkg$name"};
3540# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"}; 3632# use PApp::Util; PApp::Util::sv_dump *{"$pkg$name"};
3541 } 3633 }
3542 warn "cleared package #$pkg\n";#d# 3634 warn "cleared package $pkg\n";#d#
3543} 3635}
3544
3545our $RELOAD; # how many times to reload
3546 3636
3547sub do_reload_perl() { 3637sub do_reload_perl() {
3548 # can/must only be called in main 3638 # can/must only be called in main
3549 if ($Coro::current != $Coro::main) { 3639 if ($Coro::current != $Coro::main) {
3550 warn "can only reload from main coroutine"; 3640 warn "can only reload from main coroutine";
3551 return; 3641 return;
3552 } 3642 }
3553 3643
3554 return if $RELOAD++; 3644 return if $RELOAD++;
3645
3646 my $t1 = EV::time;
3555 3647
3556 while ($RELOAD) { 3648 while ($RELOAD) {
3557 warn "reloading..."; 3649 warn "reloading...";
3558 3650
3559 warn "entering sync_job"; 3651 warn "entering sync_job";
3620 clear_package "safe::$_" 3712 clear_package "safe::$_"
3621 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region); 3713 for qw(cf::attachable cf::object cf::object::player cf::client cf::player cf::map cf::party cf::region);
3622 3714
3623 warn "unloading cf.pm \"a bit\""; 3715 warn "unloading cf.pm \"a bit\"";
3624 delete $INC{"cf.pm"}; 3716 delete $INC{"cf.pm"};
3625 delete $INC{"cf/pod.pm"}; 3717 delete $INC{"cf/$_.pm"} for @EXTRA_MODULES;
3626 3718
3627 # don't, removes xs symbols, too, 3719 # don't, removes xs symbols, too,
3628 # and global variables created in xs 3720 # and global variables created in xs
3629 #clear_package __PACKAGE__; 3721 #clear_package __PACKAGE__;
3630 3722
3638 cf::reload_config; 3730 cf::reload_config;
3639 3731
3640 warn "loading extensions"; 3732 warn "loading extensions";
3641 cf::load_extensions; 3733 cf::load_extensions;
3642 3734
3735 if ($REATTACH_ON_RELOAD) {
3643 warn "reattaching attachments to objects/players"; 3736 warn "reattaching attachments to objects/players";
3644 _global_reattach; # objects, sockets 3737 _global_reattach; # objects, sockets
3645 warn "reattaching attachments to maps"; 3738 warn "reattaching attachments to maps";
3646 reattach $_ for values %MAP; 3739 reattach $_ for values %MAP;
3647 warn "reattaching attachments to players"; 3740 warn "reattaching attachments to players";
3648 reattach $_ for values %PLAYER; 3741 reattach $_ for values %PLAYER;
3742 }
3743
3744 warn "running post_init jobs";
3745 (pop @POST_INIT)->(1) while @POST_INIT;
3649 3746
3650 warn "leaving sync_job"; 3747 warn "leaving sync_job";
3651 3748
3652 1 3749 1
3653 } or do { 3750 } or do {
3656 }; 3753 };
3657 3754
3658 warn "reloaded"; 3755 warn "reloaded";
3659 --$RELOAD; 3756 --$RELOAD;
3660 } 3757 }
3758
3759 $t1 = EV::time - $t1;
3760 warn "reload completed in ${t1}s\n";
3661}; 3761};
3662 3762
3663our $RELOAD_WATCHER; # used only during reload 3763our $RELOAD_WATCHER; # used only during reload
3664 3764
3665sub reload_perl() { 3765sub reload_perl() {
3666 # doing reload synchronously and two reloads happen back-to-back, 3766 # doing reload synchronously and two reloads happen back-to-back,
3667 # coro crashes during coro_state_free->destroy here. 3767 # coro crashes during coro_state_free->destroy here.
3668 3768
3769 $RELOAD_WATCHER ||= cf::async {
3770 Coro::AIO::aio_wait cache_extensions;
3771
3669 $RELOAD_WATCHER ||= EV::timer 0, 0, sub { 3772 $RELOAD_WATCHER = EV::timer $TICK * 1.5, 0, sub {
3670 do_reload_perl; 3773 do_reload_perl;
3671 undef $RELOAD_WATCHER; 3774 undef $RELOAD_WATCHER;
3775 };
3672 }; 3776 };
3673} 3777}
3674 3778
3675register_command "reload" => sub { 3779register_command "reload" => sub {
3676 my ($who, $arg) = @_; 3780 my ($who, $arg) = @_;
3802 $msg =~ s/\n//; 3906 $msg =~ s/\n//;
3803 3907
3804 # limit the # of concurrent backtraces 3908 # limit the # of concurrent backtraces
3805 if ($_log_backtrace < 2) { 3909 if ($_log_backtrace < 2) {
3806 ++$_log_backtrace; 3910 ++$_log_backtrace;
3911 my $perl_bt = Carp::longmess $msg;
3807 async { 3912 async {
3808 $Coro::current->{desc} = "abt $msg"; 3913 $Coro::current->{desc} = "abt $msg";
3809 3914
3810 my @bt = fork_call { 3915 my @bt = fork_call {
3811 @addr = map { sprintf "%x", $_ } @addr; 3916 @addr = map { sprintf "%x", $_ } @addr;
3822 } 3927 }
3823 3928
3824 @funcs 3929 @funcs
3825 }; 3930 };
3826 3931
3827 LOG llevInfo, "[ABT] $msg\n"; 3932 LOG llevInfo, "[ABT] $perl_bt\n";
3933 LOG llevInfo, "[ABT] --- C backtrace follows ---\n";
3828 LOG llevInfo, "[ABT] $_\n" for @bt; 3934 LOG llevInfo, "[ABT] $_\n" for @bt;
3829 --$_log_backtrace; 3935 --$_log_backtrace;
3830 }; 3936 };
3831 } else { 3937 } else {
3832 LOG llevInfo, "[ABT] $msg\n"; 3938 LOG llevInfo, "[ABT] $msg\n";
3833 LOG llevInfo, "[ABT] [suppressed]\n"; 3939 LOG llevInfo, "[ABT] [suppressed]\n";
3834 } 3940 }
3835} 3941}
3836 3942
3837# load additional modules 3943# load additional modules
3838use cf::pod; 3944require "cf/$_.pm" for @EXTRA_MODULES;
3839 3945
3840END { cf::emergency_save } 3946END { cf::emergency_save }
3841 3947
38421 39481
3843 3949

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